@Article{SouzaOliDAsMenPei:2019:MiMiPa,
author = "Souza, Eduardo Amorim Martins de and Oliveira, Phelipe S. and
D'Assun{\c{c}}{\~a}o, Adaildo G. and Mendon{\c{c}}a,
La{\'e}rcio M. and Peixeiro, Cust{\'o}dio",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Federal do Rio Grande do Norte (UFRN)} and
{Universidade Federal do Rio Grande do Norte (UFRN)} and
{Universidade Federal do Rio Grande do Norte (UFRN)} and
{Universidade de Lisboa}",
title = "Miniaturization of a microstrip patch antenna with a koch fractal
contour using a social spider algorithm to optimize shorting post
position and inset feeding",
journal = "International Journal of Antennas and Propagation",
year = "2019",
volume = "2019",
pages = "e628430",
abstract = "This paper presents a social spider optimization (SSO) design of a
small-size microstrip antenna. Two antenna miniaturization
techniques, based on the use of a Koch fractal contour and a
shorting post (connecting the patch to the ground plane), are
combined to enable a major size reduction. The antenna is inset
fed by a microstrip line. The developed SSO algorithm is used to
find out the best radius and position of the shorting post and the
length of the inset feed, to achieve the desired resonant
frequency with good impedance matching. Antenna prototypes have
been fabricated and measured. The good agreement obtained between
numerical simulation and experimental results has validated the
design procedure. Compared with a conventional rectangular patch,
the antenna resonance frequency is reduced from 2.45GHz to 730MHz,
which corresponds to a remarkable miniaturization of about 70%.
The proposed antenna is suitable for applications in the
700-800MHz frequency range, such as 4G mobile communication
systems.",
doi = "10.1155/2019/6284830",
url = "http://dx.doi.org/10.1155/2019/6284830",
issn = "1687-5869",
language = "en",
targetfile = "6284830.pdf",
urlaccessdate = "28 abr. 2024"
}